Dart SDK Spelling b, c, and d.

runtime/vm/timer.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_TIMER_H_
 #define RUNTIME_VM_TIMER_H_
 
 #include "platform/utils.h"
 #include "vm/allocation.h"
 #include "vm/atomic.h"
@@ skipping 21 matching lines @@
     ASSERT(start_ != 0);
     ASSERT(running());
     stop_ = OS::GetCurrentMonotonicMicros();
     int64_t elapsed = ElapsedMicros();
     max_contiguous_ = Utils::Maximum(max_contiguous_, elapsed);
     // Make increment atomic in case it occurs in parallel with aggregation.
     AtomicOperations::IncrementInt64By(&total_, elapsed);
     running_ = false;
   }
 
-  // Get total cummulative elapsed time in micros.
+  // Get total cumulative elapsed time in micros.
   int64_t TotalElapsedTime() const {
     int64_t result = total_;
     if (running_) {
       int64_t now = OS::GetCurrentMonotonicMicros();
       result += (now - start_);
     }
     return result;
   }
 
   int64_t MaxContiguous() const {
@@ skipping 112 matching lines @@
   Timer* const timer_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(PauseTimerScope);
 };
 
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_TIMER_H_